Ah, OK, then the time ANS didn't remember VA having been there was probably in 1995 when she overdosed and was hospitalized, near death.
VA claims to have driven ANS to Betty Ford that year (after the pill crisis) - tho ANS always said she went there herself "on her own." I tend to believe VA on this one.
ANS liked to tell people she did a lot of things all on her own that she didn't.